package com.huashi.dealer.modular.business.verify.service.impl;

import com.huashi.dealer.core.exception.CommonException;
import com.huashi.dealer.modular.business.verify.service.VerifyService;
import com.huashi.dealer.modular.business.verify.param.VerifyRequestParam;
import com.huashi.dealer.modular.business.verify.param.VerifyResponseParam;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.Random;

/**
 * API验证码Service实现类
 *
 * @author 谭陈强
 * @since 2025-07-30
 */
@Service("apiVerifyServiceImpl")
public class VerifyServiceImpl implements VerifyService {

    @Override
    public VerifyResponseParam getVerifyCode(String token, String type) {
        VerifyResponseParam responseParam = new VerifyResponseParam();
        
        try {
            // TODO: 获取验证码
            // 这里需要实现验证码生成逻辑，包括：
            // 1. 生成随机验证码
            // 2. 保存验证码到缓存或数据库
            // 3. 设置过期时间
            
            // 模拟生成验证码
            String code = generateRandomCode(4);
            responseParam.setCode(code);
            responseParam.setVerifyId("verify_" + System.currentTimeMillis());
            responseParam.setType(type != null ? type : "default");
            responseParam.setVerifyStatus(10);
            responseParam.setExpireMinutes(5);
            responseParam.setCodeLength(4);
            responseParam.setCodeCharset("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
            responseParam.setSendTime(LocalDateTime.now());
            responseParam.setExpireTime(LocalDateTime.now().plusMinutes(5));
            responseParam.setCreateTime(LocalDateTime.now());
            
        } catch (Exception e) {
            throw new CommonException("获取验证码失败：" + e.getMessage());
        }
        
        return responseParam;
    }

    @Override
    public void checkVerifyCode(VerifyRequestParam requestParam) {
        try {
            if (requestParam.getCode() == null || requestParam.getCode().isEmpty()) {
                throw new CommonException("验证码不能为空");
            }
            if (requestParam.getVerifyId() == null || requestParam.getVerifyId().isEmpty()) {
                throw new CommonException("验证码ID不能为空");
            }
            
            // TODO: 验证验证码
            // 这里需要实现验证码验证逻辑，包括：
            // 1. 从缓存或数据库获取验证码
            // 2. 检查验证码是否过期
            // 3. 检查验证码是否正确
            // 4. 标记验证码为已使用
            
            // 模拟验证验证码
            System.out.println("验证验证码：" + requestParam.getCode());
            
        } catch (Exception e) {
            throw new CommonException("验证验证码失败：" + e.getMessage());
        }
    }

    @Override
    public void sendSmsCode(VerifyRequestParam requestParam) {
        try {
            if (requestParam.getPhone() == null || requestParam.getPhone().isEmpty()) {
                throw new CommonException("手机号不能为空");
            }
            
            // TODO: 发送短信验证码
            // 这里需要实现短信验证码发送逻辑，包括：
            // 1. 生成短信验证码
            // 2. 调用短信服务商API
            // 3. 保存验证码到缓存或数据库
            // 4. 设置过期时间
            
            // 模拟发送短信验证码
            System.out.println("发送短信验证码到：" + requestParam.getPhone());
            
        } catch (Exception e) {
            throw new CommonException("发送短信验证码失败：" + e.getMessage());
        }
    }

    @Override
    public void checkSmsCode(VerifyRequestParam requestParam) {
        try {
            if (requestParam.getPhone() == null || requestParam.getPhone().isEmpty()) {
                throw new CommonException("手机号不能为空");
            }
            if (requestParam.getSmsCode() == null || requestParam.getSmsCode().isEmpty()) {
                throw new CommonException("短信验证码不能为空");
            }
            
            // TODO: 验证短信验证码
            // 这里需要实现短信验证码验证逻辑
            
            // 模拟验证短信验证码
            System.out.println("验证短信验证码：" + requestParam.getSmsCode());
            
        } catch (Exception e) {
            throw new CommonException("验证短信验证码失败：" + e.getMessage());
        }
    }

    @Override
    public void sendEmailCode(VerifyRequestParam requestParam) {
        try {
            if (requestParam.getEmail() == null || requestParam.getEmail().isEmpty()) {
                throw new CommonException("邮箱不能为空");
            }
            
            // TODO: 发送邮箱验证码
            // 这里需要实现邮箱验证码发送逻辑，包括：
            // 1. 生成邮箱验证码
            // 2. 调用邮件服务API
            // 3. 保存验证码到缓存或数据库
            // 4. 设置过期时间
            
            // 模拟发送邮箱验证码
            System.out.println("发送邮箱验证码到：" + requestParam.getEmail());
            
        } catch (Exception e) {
            throw new CommonException("发送邮箱验证码失败：" + e.getMessage());
        }
    }

    @Override
    public void checkEmailCode(VerifyRequestParam requestParam) {
        try {
            if (requestParam.getEmail() == null || requestParam.getEmail().isEmpty()) {
                throw new CommonException("邮箱不能为空");
            }
            if (requestParam.getEmailCode() == null || requestParam.getEmailCode().isEmpty()) {
                throw new CommonException("邮箱验证码不能为空");
            }
            
            // TODO: 验证邮箱验证码
            // 这里需要实现邮箱验证码验证逻辑
            
            // 模拟验证邮箱验证码
            System.out.println("验证邮箱验证码：" + requestParam.getEmailCode());
            
        } catch (Exception e) {
            throw new CommonException("验证邮箱验证码失败：" + e.getMessage());
        }
    }

    @Override
    public VerifyResponseParam getImageCode(String token, String type) {
        VerifyResponseParam responseParam = new VerifyResponseParam();
        
        try {
            // TODO: 获取图形验证码
            // 这里需要实现图形验证码生成逻辑，包括：
            // 1. 生成随机验证码
            // 2. 生成图形验证码图片
            // 3. 保存验证码到缓存或数据库
            // 4. 设置过期时间
            
            // 模拟生成图形验证码
            String code = generateRandomCode(4);
            responseParam.setCode(code);
            responseParam.setVerifyId("image_" + System.currentTimeMillis());
            responseParam.setType(type != null ? type : "image");
            responseParam.setVerifyStatus(10);
            responseParam.setExpireMinutes(5);
            responseParam.setCodeLength(4);
            responseParam.setImageUrl("");
            responseParam.setImageBase64("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNkYPhfDwAChwGA60e6kgAAAABJRU5ErkJggg==");
            responseParam.setSendTime(LocalDateTime.now());
            responseParam.setExpireTime(LocalDateTime.now().plusMinutes(5));
            responseParam.setCreateTime(LocalDateTime.now());
            
        } catch (Exception e) {
            throw new CommonException("获取图形验证码失败：" + e.getMessage());
        }
        
        return responseParam;
    }

    @Override
    public void checkImageCode(VerifyRequestParam requestParam) {
        try {
            if (requestParam.getImageCode() == null || requestParam.getImageCode().isEmpty()) {
                throw new CommonException("图形验证码不能为空");
            }
            if (requestParam.getImageCodeId() == null || requestParam.getImageCodeId().isEmpty()) {
                throw new CommonException("图形验证码ID不能为空");
            }
            
            // TODO: 验证图形验证码
            // 这里需要实现图形验证码验证逻辑
            
            // 模拟验证图形验证码
            System.out.println("验证图形验证码：" + requestParam.getImageCode());
            
        } catch (Exception e) {
            throw new CommonException("验证图形验证码失败：" + e.getMessage());
        }
    }

    /**
     * 生成随机验证码
     *
     * @param length 验证码长度
     * @return 随机验证码
     */
    private String generateRandomCode(int length) {
        String charset = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
        Random random = new Random();
        StringBuilder code = new StringBuilder();
        
        for (int i = 0; i < length; i++) {
            int index = random.nextInt(charset.length());
            code.append(charset.charAt(index));
        }
        
        return code.toString();
    }
} 